Wall and desk cyclometer clock



NOV. 27, 1951 HQLZNER WALL AND DESK CYCLOMETER CLOCK 2 SHEETS-SHEET 1 Filed May 28, 1945 ATTORNEY NOV. 27, A, HO ZN WALL AND DESK CYCLOMETER CLOCK Filed May 28, 1945 2 SHEETS-SHEET 2 2 INVENTOR flda /falzaer HTTORNEY Patented Nov. 27, 1951 UNITED STATES PATENT OFFICE WALL AND DESK CYOLOMETER CLOCK Adolf Holzner, Merrick, N. Y.

Application May 28, 1945, Serial No. 596,301

8 Claims. 1

This invention relates to an improved cyclometer clock. It is one of the objects to provide an improved housing or casing for a cyclometer clock as for instance a clock of the type disclosed in my Patent 2,351,814. It is a major object of the present invention to provide a cyclometer clock which is universal as to mounting position, being adapted to be placed upon a horizontal surface such as a table or desk or shelf, whether in a low position or at a high elevation in the room, or to be fastened to the wall.

In accordance with the present invention the clock mechanism as a whole is suspended in a base or frame in such a way that it may be angularly adjusted to a position to be viewed readily from a viewpoint substantially level with the surface on which it rests, Or above or below the level of the .horizontal surface, or to a position attached to the wall to be viewed from various points in the room.

It is a further object to produce a very compactly arranged mechanism wherein the clock may readily be adjusted to the desired viewing angle. In fulfilling this object, there is provided a bracket having a radius shaped base which is attached to a tubing, the motor is placed between the hour and minute mechanisms, and the carriers are secured to a completely assembled inner clock mechanism. The minute indicating carriers are mounted on one side and the hour indicating carriers on the other side, which is similar to my Patent 2,117,168 as to separate operating mechanisms, however in that patent the number carriers are attached on one side only whereas in the present application they are attached on both opposite sides.

A further object of the invention is the combination of a twelve and twenty-four hour reading as in my Patent 2,351,814. Provision is being made in this application to combine the twelve and twenty-four hour reading to read off an hour between 13 and 24 (or 13 and and besides showing the time in the twelve hour reading which would be p. m. this would be helpful for an onlooker who is not familiar with such a reading and will be very important for the U. S. Army and Navy training in time reading. In connection therewith a shutter is provided for covering the numerals 13 to 24 (or 13 to 00) while the numerals from 1 to 12 are displayed. The shutter can either be left blank or if desired can be provided with zeros as in applicants Patent 2,180,590.

Another obj eat is the construction of my novel clock housing which allows the creation of all kinds of designs,

mechanism may be made out of transparent material and serves then also as a window where the time reading takes place while the other surface of the tube can be painted in any desirable color. The tubing can also be made in any plastic color. Openings are provided in walls which slide in concave windows producing a very pleasant effect. The windows have the same radius as the tube. The shutter may be made of transparent material.

These and other objects and advantages of my invention will become more fully known as the description thereof proceeds and will then be more specifically defined in the appended claim.

In the accompanying drawings forming a material part of this disclosure:

Fig. 1 is a perspective view of the clock;

Fig. 2 is a longitudinal sectional view of the clock of Fig. 1;

Fig. 3 is a cross sectional view of the clock, taken on line 3--3 of Fig. 2;

Fig. 4 is a partial cross sectional view taken along the line 4-4 of Fig. 2;

Fig. 5 is a drive for the clock identical to the.

one in my Patent 2,351,814;

Figs. 6, 7, 8 and 9 are detail views of the gearing of the clock of Fig. 2;

Fig. 10 is another clock with a large second wheel;

Fig. 11 is a detail view of Fig. 10;

Fig. 12 illustrates a method to attach windows to the tube of Fig. 1.

Figs. 13 and 14 are sectional views taken on lines l3-I3 and l4l4, respectively in Fig. 2, showing details of the gearing.

Referring to Fig. 2, a frame a has a circular surface and is secured in a tube 4|. The frame or bracket (1 comprises an upright plate b at the left of the hour mechanism of Fig. 2 and another upright plate 6 at the right of the minute mechanism. Two posts 66 are secured to plate e and the synchronous motor 61 is held thereon with screws 68. On the spindle 29 of the motor a finger disc 3 and a locking disc 2 are secured thereto. A bushing 21 has a gear 5, a locking cam 4 and another gear 69 fastened thereon, said bushing 21 is free to rotate on an extension of bushing 26 and to said extension of bushing 26 also a gear 69' is secured thereon. This gear 69' is right beside the collar 10 which is secured to shaft Ma. A shaft H is located in the bracket 01 and a tumble 12 made of aluminum is very freely rotating on shaft 1|. Said tumble 12 has a gear 13 secured thereon, and the gear 13 is in steady mesh with gears 69 and 69 of bushings 21 and 26 as for example, the tube holding 66 and serves therefor as a gear coupling means.

Gear 13 is slightly wider than both gears 69 and 69 and whenever bushing 27 is rotated bushing 25 participates, and such is the case while the clock is in operation. However, for resetting of the clock gear 13 is pushed towards the left and by pushing the tumble I2 gear 13 will get out of mesh with gear 69 of bushing 21 but Will still be in mesh with gear 59' on bushing 25 and therefore bushing 26 canbe rotated for the desired time reading whilethe-motorcan still rotatle and it's finger disc 3 and locking disc 2, called the driver, can remain in alignment with gear'5 and locking cam 4 and engage the same without any interference with the manual reset. To set the clock in op eration, tumble 12 is returned to its right-hand position, so that gear 13 is again in mesh with gear 69 and 59' on bushing 21 and the two gears .69 are again coupled. As is obvious, a lightweight coil spring may be provided on the shaft ll normally lightly urging gear 13 to remain engaged with gear 69.

The motor makes one revolution a minute and the finger disc 3 engages-the 10-toothed gear 5 and'rotates it a tenth ofa revolution every minute, and the locking disc ,2 will engage one of the cam surfaces of locking cam 4 and. thereby provide a steady locked and unlocked drive as required for the clock. Bushing 26 whichis freely located'on shaft 1I4a'is taken along by the gear meshes 69'to 13 and 13 to 69.. As said before, said bushing 26 has mutilated gears 55, 69 and 59 secured thereon and the engagement with their respective gears 56, 51 and 58 as will be explained in the following: Mutilated gear 55 is made of a 10-toothed gearof which 5 teeth are cut away (Fig. 13), so it has 5 teeth numbered 4, 5, 6, I and 8. It is periodically engaged with a gear 56 having 5 teeth. Mutilated gear 50 is made of a gear with 10 teeth of which 4 teeth are cut away soit has 6 teeth and its remainingteeth are numbered 9, 0, I, 2, 3, and L, as per Fig. 14. It is periodically engaged witha gear 51 which has 6 teeth, furthermore, a mutilated gear or a finger disc ,59 is made of a gear with ten teeth (of which 9 teeth 'are'cut away) and engag s periodically with gear 58 which has 6 teeth, the same as gear.5'|. Every one-tenth revolution of bushing 25 the aforesaid mutilated gears periodically engage their respective gears, starting with gear .55 whichengages the teeth of gear 56 and causes the rotation of the number carrier 35 which will then show the numbers 4, 5, 6, 7, 8 on its circumference while the number carrier 35 is nested in the number carrier 34, carrier 34 being provided with an opening 34a and being positioned with thisiopening in-register with the window, whereby the numbers on carrier 35 are exposed to View. Everytime'one tooth of gear 55 comes in mesh with gear. 56 it will cause another number to show oncarrier 35 in accordance with the respective teethof gear 55 relating thereto. Number carrier35 is secured to a hub '50 and hub 50 is secured to the shaft [5a (which freely rotates in the plate e and in bearing '31 of the cover plate 35), and gear 56 is secured to shaft l5a therefor, 'so that every time gear 56 rotates carrier 35 has to participate. After the period of display of the final numeral of carrier 35, the outer carrier 34 will rotate to cover carrier 35 and display its own numerals 9, 0, 1, 2, 3, the teeth of gear 60 -engaging gear 51 and'rotating gear 51 and thereby causing carrier 34 to rotate because gear 51-is secured to the eirtension 'of hub"49 (which freely rotateson shaft 15a). As carrier 34 is also secured 'to hub 49, the carrier- 34 will display the numerals 4 9, 0, 1, 2, 3, just as the respective references on gear 59 read, however tooth L of gear 55 advances carrier 34 to the position of registry of opening 34a directly adjacent the minutes window, and in the same moment the inner carrier 35 will rotate and display the numeral 4 through that opening 34a. Therefore the gear 59 and gear 55 are set so that tooth L of gear 65 and tooth 4 of gear 55 are in alignment.

Furthermore, there is provided a tens of minutes reading carrier 33 which has the numerals O to 5 inclusive distributed on its circumference.

Number carrier 33 is actuated to advance its numerals displayed every time the numeral 0 appearson the carrier 34. Carrier 33 is secured tohub'48'and on hub 48 is secured a gear 55 and a finger-disc 6 i, the latter being as shown in Fig.

als 1, 2, 3, 4, 5. When it displays its 0, a trans-.

fer takes place to the hour carrier as will here'- after be described.

As said before, finger disc 6! is secured to hub 48 which is freelyturning on the extension of hub 49 and is also freely, turning in the end plate 0. Finger disc 5! is so timed that when the number 0 of carrier 33 appears, it will engage in gear 62. Gear '62 is secured to the shaft Md, so that shaft i4a transfers the angular movements to the mechanism for the hour carrier side.

Shaft Ma has its bearing in the plate 5 and in end plate a and also in end plate 0 of the minute carrier side. Said end, plate 0 is held to the bracket plate e by a stud or post 7 which is secured to plate e and held to plate a :by a screw 58. Every time gear '62 (which hastwelve teeth), Fig. 9, rotates, mutilated gearsla, 54 and 53 participate because these three gears are also secured to shaft [4a. At theplate b, a shaft lfia has its bearing, and extends to another bearing 31 of cover plate 35. *Ahubi is secured to shaft 85a. Also a shutter :39 which has'three equally divided openings is attached to said hub 45; and on the other sideo'f'sh'aft 16a gear 5a is secured to said shaft 15a. 7

A bushing 63 is freely rotating on shaftv [5a- A gear 52 is secured to said bushing on one end,

a lZtoothed gear from which 6 teeth are cut' away -'leaving '6 consecutive teeth numbered 5, 5,

l, 8, '9, 19 (Fig. '7) ,is periodically engaged with gear5l with 6 teeth. Mutilated gear 54 is made out of a gear with '12 teeth and has 5 teeth cut away so it has 7 teeth, the remaining teeth are numbered H, l2, .l, 2, 3, '4 and L, Fig. 6. Gear 54 is periodically engaged witha gear 52 which has 7 teeth. "Finger disc 'lwhas one tooth remaining of a l2-toothed gear similar to gear 59, Fig. 8 and engagesperiodically in gear 5a which is similar to gear 5 I.

Every of-a-revolution-of shaft la the aforesaid mutilated gears 53, 54 and 1a periodically engage their respectivesears starting with gear 53, it engages the teeth of gear 5| and in turn serves to rotate the carrier 32 which will display the successive numerals 5, 6, 7, 8, 9, 10 and beside these numerals for the twelve hour reading are the numerals for the twenty-four hour reading so that reading from the 1 right to the left, beside 5 is 17, beside 6 is 18, beside 7 is 19, beside 8 is 20, beside 9 is 21, and beside 10 is 22.

The carrier 32 being nested in carrier 3i, (as in the minute reading, carrier 35 is nested in carrier 34 which has an opening 340.), an opening is also provided in carrier 3 I.

Every time one tooth of gear 53 comes in mesh with gear 5|, it will cause to show anothernumeral on carrier 32 in accordance with the respective reference teeth numerals of gear 53. Following the inner carrier 32, the outer carrier 3| will be actuated to cover up the surface of carrier 32 and display the numerals 11, 12, 1, 2, 3, 4 and besides these numerals for the twelve hour reading are the numerals for the twenty-four hour reading so that we find right beside 11 is 23, beside 12 is 00, beside 1 is 13, beside 2 is 14, beside 3 is 15, and beside 4 is 16. To cause the display of the successive numerals on carrier 3!, gear 54 engages gear 52 and rotates in accordance with the respective reference teeth on gear 54 to bring in turn the same numerals on carrier 3| into reading position.

However, tooth L of gear 54 has to be in alignment with tooth 5 of gear 53 because at the moment the 5 appears on the inner carrier 32, the outer carrier has to bring the opening 3|a into position to allow the reading of the numerals of the carrier 32.

Now the purpose of the shutter 35, which as said before has three openings equally distributed around its circumference will be explained as follows: The shutter 39 covers the numerals from 13 to while the time is displayed from 1 to 12 which is a. m. on the two carriers 3| and 32. However, when the time is displayed from 1 to 12 p. m., one of the openings of the shutter appears and the numerals from 13 to 00 will be visible through one of said openings. So the shutter 30 is actuated and so timed that every time the 1 appears on carrier 3|, finger disc la (which is similar to finger disc 59) is aligned with the tooth I of gear 54, and the actuating will occur at the same moment in which finger disc 7a engages gear 3a and tooth I of gear 54 engages gear 52 and in turn rotate their respective carriers 3| and shutter 35. At the next appearance of the 1 on carrier 3|, the finger disc 1a will again engage gear 60. and this time the shutter 30 is moved to cover the numerals from 13 to 00 again and the aforesaid cycle is repeated.

Referring to Fig. 0, which is a clock making use of the single type of wheels in which the numerals cannot be presented as large as in Fig. 1 it has however also a compact movement, including number carriers as follows: A shutter H, the same as shutter 35 from Fig. 1, except with a smaller opening, because the numerals are not as large as in Fig. 1, while all the numerals 1 to 12 are distributed on carrier l8, and beside respective ones of these numerals are located the numerals 13 to 00 for the twenty-four hour reading, so that it reads as follows: beside 1 is 13, beside 2 is 14, beside 3 is 15, beside 4 is 16. beside 5 is 17, beside 6 is 18, beside 7 is 19, beside 8 is 20, beside 9 is 21, beside 10 is 22, beside 11 is 23, and beside 12 is 00.

The next carrier l9, which is for the tens of minutes indication, has the numerals 1, 2, 3, 4, 5

and 0 distributed around its surface, and the minute carrier 20 has the numerals 0 to 9 inclusive distributed around its surface. The next carrier 2| is for the indication of the seconds. It has 60 indicating lines and every fifth second a number is placed thereon, for instance 5, 10, 15, 20 and so on up to 55 and then 00. Further explanation is not required in view of the similarity of this clock to the clock of Figs. 1 and 2, that any one should be quite familiar with its further operation as explained in the following:

The frame d, the motor drive and driven members, and its endplates a and c, are identical with the corresponding parts in the illustration of Fig. 2.

On bushing 26 is secured a gear |3 and a finger disc 1 and at every /10 of a revolution of bushing 26, number carrier 29 is advanced to show its successive numerals, because gear |3 is in mesh with gear l2 and both gears are of a ratio 1:1 and on an extension of gear |2 the number carrier 20 is secured. The finger disc I which is the same as finger disc 59, Fig. 8, is timed so that every time when the 0 appears on carrier 20, finger disc I engages gear 5 which is the same as gear 58, carrier I9 is advanced to show another numeral because gear 6 has an extension and carrier I9 is secured thereto.

Furthermore at the moment when the number 0 appears on carrier 9 a transfer takes place to the hour side, the same as explained for Fig. 2. A finger disc 3, Fig. 11, is secured to gear 6- and engages gear 8 which is secured to spindle l4 and at the left in the hour side a gear |3a and a finger disc 7a are secured to spindle l4 and every time finger disc 9 engages gear 8, it is rotated for /12 of a revolution and so is carrier l8, because gear |3a is in mesh with gear |2a and both gears are of a ratio 1:1, gear [2a is secured to a hubh and carrier I8 is also fastened thereon, so carrier 18 displays its 1 to 12 hour, and every time the hour 1 is rotated into its reading position, gear 6a which is the same as gear 5|, is rotated by the engagement of finger disc Ia, and the shutter operates exactly as described for Fig. 2. Gear 6a is secured to shaft I6 and so is hub I. Shutter I1 is also fastened to hub I so the display of the hour is: Starting, the shutter covers the numerals from 13 to 00, all the successive numerals 1 to 12 a. m. are displayed and at the appearing of the 1 which is then p. m., the shutter uncovers the other side of carrier I8 and the 13 can be seen: On the motor shaft 29 a gear II is secured which is in mesh with gear [0 and both are of a ratio 1:1 and while motorshaft 29 rotates one revolution a minute, and as gear [0 is secured to shaft |5 to which carrier 2| is also secured (which is for the seconds indication), carrier 2| has to participate in the movement of the motor, and displays its seconds indication.

The clock mechanism of Fig. 2 is secured to the tube 4| Figs. 1 and 2 and has on each end endcovers 36 (which has a bearing 31 in the center where the shafts |5a and Mia are located), each pushed on a recess of tube 4|, both end covers 36 being held together by rods 42 in the front and rear of the housing, or when the clock is on the wall, one rod is underneath and one above. Said rods 42 have threaded ends and nuts 43 hold the whole assemblage together. By the same method end covers 22 of the housing in Fig. 10 are held together, but with this housing the clock mechanism is secured to a tube 24 made of plastic or any similar material, or metal, aluminum, copper or the like: and for the minute and hour side the transparent tubings 23 are painted and only :theldesired opening where the time reading takes. place visleft blankso as to serveas a window. gIn Fig. -1 the tubing 4| .has openings where the concaved window with its dovetailed ends are slidingin said openingias Fig. 12 clearly shows.

Furthermore, for the sake of a good locking actioniof the mechanism the gears are provided with a. curved cam surface so for instance in Fig. .7, gear ,5! has on the top of its teeth a cam surface a in which the locking surface 53a of gear ,53 slides until the teeth of .gear 53 engage again the teeth of gear 5|.

v Now,, for'use of the clock when it is desired to hang it on the wall or'stand it on a desk, one end cover 36 is provided with a spring 38 (Figs. 2 ends) secured to a little block 39 which ,is attached to end cover 35, said spring 38 engaging notches All in tube 41 and serving as means to holdthe tube fixed in positiomonce the clock has been adjusted for a desired angular setting. Where the casing is made up as indicated in Fig. ;-l0,.the mechanism including the middle .section 24 and the transparent tubings 23 and all of theelernents supported rigidly from section 24 is turned relative to the end covers 22 which,,as aforesaid, are clamped together in thesame way as end covers 36 of Fig. 1. In this manner, the transparent windows of the tubings 23 (the unpainted areas thereof) are angularly positioned along with the numeral carriers, the desired relationships among the visible numeral progressions being thus maintained regardless of the angular setting.

Itis obvious that various changes may be made in my invention by variations in the details of construction without departing from the spirit of the invention, as illustrated by the following examples: The numerals from 1 to 24 or 1 to 00 can be distributed on three carriers. A shutter can cover the numerals of 1 to 12 while the reading from .13 to 00 takes place. Also the shutter can be eliminated and the two carriers 31 and 32 have the numerals l to 12 only distributed on their surface. The end covers 36 need not necessarily be connected with a rod, as long as they are tight fitting in tube M as the two end covers 36 could then be moved independently and aligned by .standingor hanging on a flat surface.

,No provision is being made for hanging the clock on the wall, but it is understood that any means can be applied to the clock base to serve that purpose.

Rods 42 can have any suitable shape. Also any desired known operating means can be applied as a driver for my clock, so for instance a spring clock which is wound up by a solenoid as for use in; automobileswhere there is no alternating current available.

The frame is illustrated as an open or skeletonized housing with end plates 36 and tie rods 42 .therebetween. It will of .course be realized that the frame or housing may, if desired, be arranged to enclose fully or partially an appreciable sector of the tube 4|, and if the rod portions 42 illustrated as simple round stock are formed to provide such semi-enclosure, the tube 4| maybe made as a complete cylinder or as a major part of a cylinder, sufficient along with the base or frame structure to keep the mechanism fully enclosed.

Having thus described myinvention, what I claim is:

1. A cyclometer clock comprising a'clock mechanism havingadriving motor and rotatable clock dials driven thereby, a tubular casing enclosing the clock mechanism and havingwindowportions through which the time is displayed by means of saidclock dials, closure members at the opposite ends respectively of said casing, base structure associated with said closure members for mounting the clock in operative position, and meansfor adjusting the clock to a desired reading-angle setting comprising complementary bearing portions on said end closure members and the ends of said casing for rotatably supporting the casing whereby the casing and clock mechanism as a unit are manually rotatable through any desired angle about the longitudinal axis of the casing.

'2. A cyclometer clock comprising a clock mechanismhaving a driving motor and rotatable clock dials driven thereby, a tubular casing enclosing the clock mechanism and having window portions through which the time is displayed by means of said clock dials, closure members at the opposite ends respectively of said casing, base structure associated with said closure members for mounting the clock in operative position, means for adjusting the clock to a desired reading-angle setting comprising complementary bearing portions on saidend closure members and the ends of said casing for rotatably supporting the casing whereby the casing and clock mechanism as a unit are manually rotatable through any desired angle about the longitudinal axis of the casing, and means for holding the casing in its adjusted reading-angle setting.

3. A cyclometer clock comprising a clock mech anism having a driving motor and rotatable clock dials driven thereby, a tubular casing enclosing the clock mechanism and having window portions through which the time is displayed by means of said clock dials, closure members having peripheral flanged .portions engaging the opposite endsrespectively of said casing, base structure associated with said closure members for mounting the clock in operative position, and means for adjusting the clock to a desired reading -'angle setting comprising complementary bearing surfaces on the flanged portions of said end closure members and on the ends of said casing .for .rotatably supporting the casing whereby the casing and clock mechanism as a unit are manually rotatable through any desired angle aboutthe longitudinal axis of the casing.

4. A cyclometer clock comprising a clockmechanism having a driving motor and rotatable cylindrical clock dials driven thereby, a cylindrical casing enclosing the clock mechanism and having curved window portions through which the timeis displayed by means of said clock dials, closure members having circular flanged portions engaging the opposite ends respectively of said cylindrical casing and having base structure extending therefrom for mounting the clock in operative position, and means for adjusting the clock to a desired reading-angle setting comprising complementary bearing surfaces on said circular-flanged portions of the end closure members and on the circular ends of said casing for rotatably supporting the casing whereby the casing and clock mechanism as a unit are manually rotatable through any desired angle about the longitudinal axis of the casing.

5. A cyc-lometer clock comprising a clock mechanism having adriving motor and rotatable clock dials driven thereby and shaft members for rotatably mounting the clock dials, a tubular casing enclosing the clock mechanism and having window portions through which the time .is dis- 9 played by means of said clock dials, closure members having flanged portions engaging the opposite ends respectively of said casing, base structure associated with said closure members for mounting the clock in operative position, the inner faces of said closure members having bearing structures for supporting said shaft members on which the clock dials are mounted, and means for adjusting the clock to a desired reading-angle setting comprising complementary bearing portions on said end closure members and the ends of said casing for rotatably supporting the casing whereby the casing and clock mechanism as a unit are manually rotatable through any desired angle about the longitudinal axis of the casing.

6. A cyclometer clock comprising a clock mechanism having a driving motor and rotatable cylindrical clock dials driven thereby, a cylindrical casing enclosing the clock mechanism and having apertured window portions through which the time is displayed by means of said clock dials, transparent curved window panes positioned in said apertured portions and each having the same radius as that of the cylindrical casing, closure members engaging the opposite ends respectively of said casing and havin base structure extending therefrom for mounting the clock in operative position, and means for adjusting the clock to a desired reading-angle setting comprising complementary bearing portions on said end closure members and the ends of said casing for rotatably supporting the casing whereby the casing and clock mechanism as a unit are manually rotatable through any desired angle about the longitudinal axis of the casing.

7. A cyclometer clock comprising a clock mechanism having a driving motor and rotatable clock dials driven thereby, a tubular casing enclosing the clock mechanism and having a plurality of transparent tubular wall sections therein through which the time is displayed by means of said clock dials, means for masking the transparent wall sections to define windows for the clock dials, closure members engaging the opposite ends respectively of said casing and having base structure extending therefrom for mounting the clock in operative position, and means for adjusting the clock to a desired reading-angle setting comprising complementary bearing portions on said end closure members and the ends of said casing for rotatably supporting the casing whereby the casing and clock mechanism as a unit are manually rotatable through any desired angle about the longitudinl axis of the casing.

8. A cyclometer clock comprising a base structure having a pair of ends spaced an appreciable distance apart, a cyclometer clock mechanism including a driving motor and rotatable clock dials driven thereby, and a shell portion having viewing window means therein through which the time is displayed by said dials, said shell portion and said cyclometer clock mechanism ineluding the driving motor and the clock dials being rotatably supported in said base structure between bearings in said ends and being angular- 1y adjustable about an axis between said end bearings for variation of the reading-angle setting, said base structure and said shell portion having conformal curved surfaces and together providing an enclosure of said cyclometer clock mechanism.

ADOLF HOLZNER.

REFERENCES CITED The following references are of record in the file of this patent:

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